BindingList and ESC key

[s]

Hi,

we are using custom data binding in conjunction with the GGC. Our business object is derived from BindingList. Now when I click in a "append new row" cell and press a key, the AddNew method of the binding list is called and a new item is added to the list.

The problem occurs when I press ESC during this operation. I would expect, that the item is removed from the binding list because the add new row is canceled in the grid. But this is not the case - the item still exists in the binding list. I have attached a sample where you can see the behavior.

Cheers,
Steve

GGC_EscAndBindingList.zip

[haneefm]

Hi Steve,

You can handle the TableControlCurrentCellKeydown event and call RemoveAt method to remove the record at specified position in a list. Below is a code snippet

void gridGroupingControl1_TableControlCurrentCellKeyDown(object sender, GridTableControlKeyEventArgs e)
{
if (e.Inner.KeyData == Keys.Escape)
{
Element el = e.TableControl.Table.CurrentElement;
if (el is GridAddNewRecord)
{
MyTable a = this.gridGroupingControl1.DataSource as MyTable;
a.RemoveAt(a.Count -1);

}
}
}

Here is a sample.
ModifiedGGC_ComboBox.zip

Best regards,
Haneef